Search for Pair Production of Strongly Interacting Particles Decaying to Pairs of Jets in pp̅ Collisions at √s=1.96 TeV

• Main Authors: Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Paus, Christoph M. E. (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2013-09-16T15:41:06Z.
• Subjects: Article
• Online Access: Get fulltext

We present a search for the pair production of a narrow nonstandard-model strongly interacting particle that decays to a pair of quarks or gluons, leading to a final state with four hadronic jets. We consider both nonresonant production via an intermediate gluon as well as resonant production via a distinct nonstandard-model intermediate strongly interacting particle. We use data collected by the CDF experiment in proton-antiproton collisions at √s=1.96  TeV corresponding to an integrated luminosity of 6.6  fb[superscript -1]. We find the data to be consistent with nonresonant production. We report limits on σ(pp̅ →jjjj) as a function of the masses of the hypothetical intermediate particles. Upper limits on the production cross sections for nonstandard-model particles in several resonant and nonresonant processes are also derived.
United States. Dept. of Energy
National Science Foundation (U.S.)
Alfred P. Sloan Foundation